Dental impression tray



FIG. 1 is a top perspective view of a dental impression tray showing my new dsign and illustrating its use with respect to a model of the upper arch of a person shown in phantom;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a left side elevational view of the dental impression tray of my new design, the right side being identical in appearance;

FIG. 4 is a bottom perspective view of an alternate embodiment for use on the lower arch of a person and showing in phantom a model of a lower arch;

FIG. 5 is a top perspective view thereof; and,

FIG. 6 is a left side elevational view thereof, the right side being identical in appearance. 

The ornamental design for a dental impression tray, as shown and described. 